Fan guard



FIG. 1 is a bottom plan view of a fan guard showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being the same as the side shown; and

FIG. 4 is another side elevational view thereof taken 90 degrees from that shown in FIG. 3, the opposite side being the same as the side shown. 

The ornamental design for a fan guard, substantially as shown and described. 